ScienceInsights

Most people don't need daily vitamins, but some do. Here's what the research says about who benefits, when supplements help, and when they can cause harm.

Different teas work better for different digestive issues. Find out which one fits your symptoms, from bloating to cramps to sluggish digestion.

Find out how much vitamin D kids need at every age, which children are most at risk for deficiency, and how sun, food, and supplements can help.

Losing weight doesn't have to mean losing muscle. Here's what protein, training, sleep, and calorie strategy actually do to your body composition.

Soy lecithin isn't really a seed oil, though it does contain trace amounts. Here's what it actually is and whether to avoid it on a seed oil-free diet.

Learn what triglycerides are, how they differ from cholesterol, and what high levels mean for your heart health and how to bring them down.

Porn addiction isn't an official diagnosis, but that doesn't mean compulsive use has no real effects. Here's what the research actually shows.

Natural caffeine has real health benefits, but how much is too much depends on the person. Here's what the science actually says.

High cortisol is a real medical condition, but it's often misunderstood. Learn what actually raises cortisol, how it's diagnosed, and what you can do about it.

Learn what temperature breast milk should be for feeding, how to warm it safely, and how to store and thaw it without losing quality.